520453407 has 16 divisors (see below), whose sum is σ = 725280768. Its totient is φ = 331346400.

The previous prime is 520453369. The next prime is 520453421. The reversal of 520453407 is 704354025.

It is not a de Polignac number, because 520453407 - 2¹¹ = 520451359 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520453447) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39282 + ... + 50832.

It is an arithmetic number, because the mean of its divisors is an integer number (45330048).

Almost surely, 2^520453407 is an apocalyptic number.

520453407 is a deficient number, since it is larger than the sum of its proper divisors (204827361).

520453407 is a wasteful number, since it uses less digits than its factorization.

520453407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12230.

The product of its (nonzero) digits is 16800, while the sum is 30.

The square root of 520453407 is about 22813.4479419486. The cubic root of 520453407 is about 804.3788050007.

The spelling of 520453407 in words is "five hundred twenty million, four hundred fifty-three thousand, four hundred seven".